Disk-bearing.



Patented Sept. 4, I900. S. D. POOLE.

DISK BEARING.

(Application filed June 12, 1900.)

(No Model.)

Miran STATES PATENT OFFICE,

STALEY D. POOLE, OF MOLINE, ILLINOIS, ASSIGNOR TO THE DEERE & COMPANY, OF SAME PLACE.

DISK-BEARING;

SPECIFIGATEON forming part of Letters Patent No. 657,204, dated September 4,1900.

Application filed June 12,1900. Serial No. 20,049. (No model.)

To (LZZ whom, it may concern.-

Be it known that I, STALEY D. POOLE, a citizen of the United States, residing at Moline, in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Disk-Bearings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertaius to make and use the same.

This invention relates to disk-bearings, and more particularly to bearings for disk plows and the like.

The primary object of the invention is to provide an efficient antifriction-bearing for a rotary cutting-disk with capacity for adjustment to permit the wearing-surfaces of the bearing to be shifted or adj usted so that the positions of such of the antifriction devices and the wearing-surfaces in contact therewith as are most liable to wear in use may be shifted or changed from time to time to obtain a new or less-worn surface, while the excessively-worn surfaces are brought into positions for less wear, whereby such surfaces will be caused to wear more evenly than in devices of this same general character as heretofore constructed, thus reducing the friction and increasing the durability of the device.

A further object is to provide a roller and ball-bearing combined in such manner that the bottom side thrust of the disk, which is usually much the greatest, may be borne by the lower rollers, while the upward thrust is borne by the lower balls and the pull-off or discharge by a portion of the upper balls in the same race.

A further objectis to provide an improved compound antifriction-bearing with simple and efficient means for attaching the device to the plow standard or hanger with capacity for easily removing the same without removing or disarran ging the balls or rollers intheir respective races.

The invention will first be hereinafter more particularly described with reference to the accompanying drawings, which form a part of this specification, and then pointed out in the claims at the end of the description.

In the drawings, in which similar letters of reference are used to denote corresponding parts in different views, Figure 1 represents a vertical sectional elevation of an antifriction disk-bearing embodying my invention. Fig. 2 is a detail view of the adjustable antifriction bearing-disk or race-plate; Fig. 3,- a de tail plan View of a broken-away portion of the roller spacing-ring, and Figs. at and 5 detail sectional views of modifications.

Referring to the drawings, the letter A may denote an ordinary concave-convex disk,such as commonly used in the class of agricultural implements to which this invention relates, said disk having secured thereto by any suitable means, as the nuts and bolts an, an annular angle-plate B, from the upper or outer edge of which a ring-flange or lugs b b may extend, having apertures therein to receive the fastening-bolts a, while the other edge of said angle-plate is formed or provided with an oppositely-extending ring-flange or annulus b, so as to provide an annular space or recess between the latter flange and the back of the disk to receive and confine in rotative engagement therewith the peripheral portion of a race-plate or bearing-disk O, on which the cutting-disk has its bearings. The disk 0 is provided on its front face, at or near its circumferential portion,with asuitable annular raceway or depression of such shape as to form a bearing-surface for a series of conical rollers D D, which are interposed between the said bearing-surface or raceway and the back or convex surface of the disk, said rollers being preferably loosely confined at predetermined distances apart and held in fixed positions relatively to the line of rotation by suitable spacing and retaining devices-such, for instance, as the spacing-ring E, having suitable apertures therein at intervals to receive the correspondingly-shaped rollers and hold them in their proper places in the race. However, rollers and retainers of any suitable form may be employed. The bearing plate or disk 0 has an annular concave recess or depression 0 in its periphery to provide a ball-race for a series of balls located and confined therein by contact with the confronting concave surface of the interior of the annulus B, at the junction of the main body portion thereof with the right-angled flange or ring portion 12 thereon. The balls F are also preferably held at suitable distances apart within the ball-race by means of a spacing-ring G, having apertures therein to receive the balls aftervthe manner of the spacing-ring E, hereinbefore described, said spacing-ring G being arranged so as to span the space within the ball-race at such an angle to the diametricallyopposite points of contact of the balls with the concave portions of the disk 0 and annulus B as to prevent frictional contact of the spacing-ring with the wearing-surfaces of the ball-race. In order to secure the bearing-disk O in proper position upon its supporting hanger or standard and at the same time to provide for the adjustment thereof, so as to obtain a new wearing-surface of the antifriction devices and their races when any portion thereof has been excessively worn, the disksupporting standard or hanger, which is deing the nut on the fastening-bolt the bearingdisk may be again secured in a fixed position relatively to the disk rotatively mounted thereon with new wearing-surfaces in the position exposed to excessive wear.

It will be understood, of course, that any desired number of interlocking lugs and recesses may be provided and that instead of recesses in the standard or other support for the disk such support may be provided with a lug or lugs or projections for engagement with recesses in the back of the bearing-disk. It will also be understood that other suitable means may be employed for separating the balls and rollers and holding them in the desired positions in their respective races and that the spacing-rin gs may be dispensed with, if desired; but they are preferably employed for greater efficiency, as they tend not only to reduce the friction, but to increase the durability of the device and reduce the expense by rendering a less number of balls and rollers necessary. Other-changes may also be made in the details of construction and arrangement of parts, without departing from the spirit and scope of my invention, and

hence I do not desire to be limited to the exact construction and arrangementshown and" described.

By arranging the spacing-ring Gso that it be sustained in proper position for separating the balls by contact of its oppositeedges with the adjacent surfaces of theangle-p'late or bearing-disk, so as to prevent it from dropping down and releasing the balls, and hence a plain flat ring may be used; but the spacing-ringE,which may bear at one side against the peripheral portion of the disk 0, is pref erably provided on the opposite side thereof with protuberances e, abutting the surface of the bearing-plate or back of the disk confronting said protuberances, so as to hold the spac ing-ring in a relatively-fixed position with reference to the rollers or other antifriction devices orin alinement with the centers thereof, and thus prevent the spacing-ring from moving sidewise, either out or in, sufficiently to release the rollers. Such raised portions may consist of a protuberance e, stamped or otherwise formed thereimor an upturned part c, as shown in Fig. 4, which may be cut or stamped out of the body of the ring, or any other suitable projections or protuberances may be used.

In Fig. 5 I have shown a detail sectional view of a modification of the bearing which is exactly similar to the construction shown in Fig. 1, except that in this construction a bearing-plate (lettered A in the drawings) is employed. This plate may be in the form of aflat ring or annulus, as shown, secured to the an gle-plate B, between the latter and the back of the disk A, to provide a bearing-surface confronting the annular bearing-surface on the front face of the bearing-disk O, and it is designed to serve the double function of providing a movable wearing-surface or raceway for the rollers orother antifriction devices adapted to be easily removed and replaced when worn and to prevent the rollers from falling out when the disk is removed from the bearing. This bearing-plate may be formed integrally with the angle-plate B; but it is preferably formed separately therefrom and bolted or otherwise secured thereto. Any suitable material adapted to provide a sufficiently hard wearing -surface may be used; but I preferably employ a plain metal ring shaped to conform to the convex surface of the disk and present on its opposite side a bearing-surface adapted to conform to the shape of the ant ifriction devices bearing thereon.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, 'is- 1. In a disk plow, the combination with a relatively fixed partor support and a disk rotatably secured thereto, of a series of antifriction devices interposed between the back of the disk and a confronting bearing-surface on said support, and a series of anti-, fricti'on'devices interposed between confronting bearing-surfaces on the opposite side of said support'and a rotary element carried by or revolving with :the disk, substantially as described.

2. In a disk plow, a composite antifrictionbearing for the disk, comprising a relatively- IIO fixed part or support about which the disk may rotate, an annular series of rollers interposed between confronting bearing-surfaces on said support and the disk and an annular series of balls interposed between confronting bearing-s11 rfaces on the opposite side of said support and a rotary element carried by or revolving with the disk, substantially as described.

3. In a disk plow, a composite antifriotionbearing for the rotary disk, comprising a relatively-fixed part or support about which the disk may rotate, an annular series of antifriction devices interposed between the back of the disk and a confronting bearing-surface on said support, and an annular series of antifriction devices interposed between confronting bearing'surfaces on the opposite side of said support and a rotary element carried by or revolving with the disk, together with means for adjusting and securing said fixed part or support so as to shift the positions of the bearingsurfaces thereon and of the antifriction devices in such manner as to cause those parts that are least exposed to wear to take the position of excessivelyworn portions, substantially as described.

4. In a disk plow, a composite antifrictionbearing for the rotary disk, comprising a relatively-fixed part or support about which the disk may rotate, an annular series of conical rollers interposed between confronting bearing-surfaces on said support and the back of the disk, and an annular series of balls interposed between confronting bearing-surfaces on the opposite side of said support and a rotary element carried by or revolving with the disk, together with means for adjusting and securing said fixed part or support so as to shift the positions of the bearing-surfaces thereon and of the antit'riction devices in such manner as to cause those parts that are least exposed to wear to take the position of excessively-worn portions, substantially as described.

5. In a disk plow, the combination with a relatively-fixed part or support and a disk ro= tatably secured thereto, of a series of antifriction devices interposed between the back of the disk and a confronting bearing-surface on said support, and a series of antifriction devices interposed between confronting bearing-surfaces on the opposite side of said support and a rotary element carried by or revolving with the disk, and means for holding said antifriction devices at suitable distances and an annular series of balls interposed between confronting bearing-surfaces on the opposite side of said support and a rotary element carried by or revolving with the disk, and means for holding said rollers and balls at suitable distances apart in their respective courses or races, substantially as described.

7. In a disk plow, a composite antifrictionbearing for the rotary disk, comprising a relatively-fixed part or support about which the disk may rotate, an annular series of antifriction devices interposed between the back of the disk and a confronting bearing-surface on said support, an annular series of antifriction devices interposed between confronting bearingsurfaces on the opposite side of said support and a rotary element carried by or revolving with the disk, and means for holding said antifriction devices at suitable distances apart in their respective courses or races, together with means for adjusting and securing said fixed part or support so as to shift the positions of the bearing-surfaces thereon and of the antifriction devices in such manner as to cause those parts that are least exposed to wear to take the position of excessively-worn portions, substantially as described.

8. In a disk plow, a composite antifrictionbearing for the disk, comprising a relativelyfixed part or support about which the disk may rotate, an annular series of rollers interposed between confronting bearing-surfaces on said support and the disk, and an annular series of balls interposed between confronting bearing-surfaces on the opposite side of said supportand a rotary element carried by or revolving with the disk, together with spacing-rings apertured at intervals to receive and hold said rollers and balls at prescribed distances apart in their respective courses or races, substantiallyas described.

9. In a disk plow, a composite antifrictionbearing for the disk, comprising a relativelyfixed part or support about which the disk may rotate, an annular series of rollers interposed between confronting bearing-surfaces on said support and the disk, and an annular series of balls interposed between confronting bearing-surfaces on the opposite side of said support and a rotary element carried by or revolving with the disk, together with spacing-rings apertured at intervals to receive and hold said rollers and balls at prescribed distances apart in their respective courses or races, and means for changing the position of said support so as to cause the bearing-surfaces thereon and of the antifriction devices that are least exposed to wear to take the position of excessively-worn portions, substantially as described.

10. In a disk plow, the plow standard or hanger, and the bearing-plate adj ustably secured thereto by a suitable fastening-bolt, and recesses on one of said parts to receive an interlocking lug or lugs on the other part, whereby the bearing-plate may be rotated about the fastening-bolt and secured in different positions; in combination with a courpositc antifriction-bearin g for the rotary disk,

comprising'a series of antifriction devices interposed between the back of the disk and a confronting bearing-surface on said bearingplate, and an annular series of antifriction devices interposed between confronting bearring-surfaces on the opposite-side of said su-pport and a rotary element carried by or revolvingwith the disk, substantially as described.

'11. In a disk plow, the plow standard or hanger, and the bearing-plate adjustably' secured thereto by a suitable fastening-bolt, and recesses on one of said parts to receive an interlocking lug or lugs on the other part, whereby the bearing-plate may be rotated about. the fastening-bolt and secured in different positions; in combination with a composite an-tifriction bearing for the rotary disk, comprising a series of anti-friction d'evicesinterposed between the back of the disk and a confronting bearing-surface on said bearing-plate, and an annular series of anti friction devicesinterposed= between confronting bearing-surfaces on the opposite side of said support and a rotary element carried by or revolving with the disk; and fiat ring-s apertured at intervals to receive and hold said antifriction devices at suitable distances apart in their respective races,substantial] y as described.

12'. In combination with the rotary disk, and an annular series of antifriction devices, such as balls or rollers, a flat spacing-ring having a series of apertures therein to receive and hold said antifriction devices apart inrotary contact with opposing'bearing-surfaces between which the antifriction devicesare. confined, and protuberances thereon for holding the spacing-ring between confronting surfaces in, alineinent with the centers of the antifriction devices, substantially as described.

13. The combination with the rotary cutting-disk, of a relatively-fixed part or support to which the disk is rotatably secured, a series of rollers interposed between confronting bearing-surfaces on said fixed part and the back of the disk, at a point between the center and circumference of the disk considerably removed from its center, and a similarly-arranged series of balls interposed between eonfronting bearing-surfaces on the opposite side of said fixed part and a member carried by or revolving with the disk, substantially as described.

14. The combination with a rotary'cu'ttingdisk, of a relatively-fixed part or support to which the disk is rotatably secured, aseries of conical rollers interposed between the back of the disk and a confronting bearing-surface on said support at a point between the center and circumference of the disk, and a series of balls interposed between confronting bearing-surfaces on the opposite side of said support and an element carried by or revolving with the disk, substantially as described.

15. The combination with a rotary cuttingdisk, of a relatively-fixed part or support to which the disk is rotatably secured, an annular series of rollers interposed between the back of the disk and a confronting bearingsurface on said fixed part at a point between the center and circumference of the disk, a series of balls interposed between confronting' bearing-surfaces on the opposite side of said support and a member carried by or revolving with the disk, and means for loosely confining said rollers and balls at prescribed distancesapart between said bearing-sur- Vitnesses:

SCHILLER HosFoRD, J. E. PooLE. 

